Grinding surface roughness real-time detection and intelligent control system

An intelligent control system and surface roughness technology, which is applied to automatic grinding control devices, parts of grinding machine tools, grinding/polishing equipment, etc. , device structure and complex operation, etc., to achieve the effect of facilitating subsequent viewing and analysis

Active Publication Date: 2020-03-24
湖南中铁五新重工有限公司
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Problems solved by technology

Methods of measuring roughness are usually divided into two categories: contact measurement (such as stylus measurement); non-contact measurement (such as optical measurement and acoustic emission measurement), but contact measurement is difficult to achieve online detection of roughness , making it difficult to control the grinding quality in real time
However, the device structure and operation of optical measurement and acoustic emission measurement are more complicated, and the cost is higher, and the requirements for grinding conditions are also higher.
[0003] Patent No. CN201010168306.X proposed the use of acoustic emission technology to detect the surface quality of cylindrical grinding workpieces in real time, established a relationship model between acoustic emission signals and workpiece surface roughness, and then realized the visualization of workpiece surface quality during...

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  • Grinding surface roughness real-time detection and intelligent control system
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  • Grinding surface roughness real-time detection and intelligent control system

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Embodiment Construction

[0026] The specific embodiments of the invention will be further described below in conjunction with the accompanying drawings.

[0027] Such as figure 1 and figure 2 As shown, a grinding surface roughness online detection and intelligent control system is characterized in that: the system includes a roughness detection module, a signal acquisition module and a grinding parameter intelligent control module. The roughness detection module includes an external regulated air source and an air injection device (4), the regulated air source provides a stable high-pressure air flow for the system, and the air injection device (4) consists of a plenum chamber (6), a pressure chamber (7) and a nozzle (9), the plenum (6) and the plenum (7) are separated by a partition (11), and the center of the partition (11) is processed with an air hole (10) to communicate with the plenum (6) and There are multiple groups of air pressure sensors (8) evenly distributed in the pressure changing cha...

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Abstract

The invention discloses a grinding surface roughness real-time detection and intelligent control system. According to the system, constant-pressure high-pressure air flow is provided by an external stable-pressure air source, and the high-pressure air flow sequentially passes through a pressure stabilizing chamber, a variable-pressure chamber and a nozzle of a jet device, then is sprayed on the surface of a workpiece from a nozzle outlet and is finally dispersed in the atmosphere. When the roughness of a grinded surface changes, the distance between the nozzle outlet of the nozzle and the grinded surface changes, then the air flow of the nozzle changes and the pressure in the variable-pressure chamber changes, so that a signal collected by a pressure sensor changes, a signal acquisition module transmits the collected signal to a computer for signal analysis and data display in the computer, and meanwhile feature data of the signal are extracted. When the signal change of the pressure sensor exceeds a set threshold, the computer transmits a feedback signal to a grinding machine numerical control platform, the rotation speed of a grinding wheel and the moving speed of a workbench areadjusted, and the surface roughness of the grinded workpiece is guaranteed.

Description

technical field [0001] The invention relates to a real-time detection and intelligent control system of roughness, in particular to a real-time detection and intelligent control system of grinding surface roughness. Background technique [0002] Grinding is an important part of machining and is widely used in high-precision machining. In precision grinding, the surface roughness of the workpiece is one of the important indicators for evaluating the quality of grinding. Methods of measuring roughness are usually divided into two categories: contact measurement (such as stylus measurement); non-contact measurement (such as optical measurement and acoustic emission measurement), but contact measurement is difficult to achieve online detection of roughness , so it is difficult to control the grinding quality in real time. However, the device structure and operation of optical measurement and acoustic emission measurement are more complicated, and the cost is higher, and the re...

Claims

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Application Information

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IPC IPC(8): B24B49/08B24B51/00
CPCB24B49/08B24B51/00
Inventor 毛聪孙鹏程隆鹏胡永乐刘超
Owner 湖南中铁五新重工有限公司
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